Delivery boy Lin He's family is destitute, his father is seriously ill and he has suffered all kinds of human suffering.
Accidental activation of the dual realm exchange system: receiving qi in reality in exchange for cultivating immortality, and slaying monsters in the wasteland in exchange for good luck in the world.
Others who practiced hard for ten years were not as good as he received a scolding, and those who had bullied him all suffered retribution.
During the day, he endures his anger and delivers food, and at night, he transforms into the number one killer in the world of immortality!
